> Van: Stewart Pye <stew@UQ.NET.AU>
> Aan: PICLIST@MITVMA.MIT.EDU
> Onderwerp: Battery Power Supply?
> Datum: vrijdag 25 juni 1999 10:30
>
> Hi All...

Hello Stewart,

> I'm doing a project with a PIC16F84 that I want to run from batteries.
The
> person I'm doing it for would prefer to use a 9V battery. My question is:
>
> Should I use a 78L05 regulator, or resistor voltage divider, or
> resistor/zener diode?
> Which one would consume the least current. I'm guessing a 78L05 would be
> the way to go. Any Ideas?

Not a good idea.  Your 78L05 would consume about 4 to 5000 ! times the
current the PIC would take.  A PIC run's well on 3 volts.  Why not take 2
penlights, put them together in a case with contacts on top like a 9 volt
block (available in any electronics store) and use them like you would a 9
volt block ...

Greetz,
  Rudy Wieser